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Title: Estimation of 3D cardiac deformation using spatio-temporal elastic registration of non-scanconverted ultrasound data
Authors: Elen, An
Loeckx, Dirk
Choi, Hon Fai
Gao, Hang
Claus, Piet
Maes, Frederik
Suetens, Paul
D'hooge, Jan #
Issue Date: Apr-2008
Conference: SPIE medical imaging 2008 conference : ultrasonic imaging and signal processing location:San Diego, California, USA date:February 17-21, 2008
Abstract: Current ultrasound methods for measuring myocardial strain are often limited to measurements in one or two
dimensions. Spatio-temporal elastic registration of 3D cardiac ultrasound data can however be used to estimate
the 3D motion and full 3D strain tensor. In this work, the spatio-temporal elastic registration method was
validated for both non-scanconverted and scanconverted images. This was done using simulated 3D pyramidal
ultrasound data sets based on a thick-walled deforming ellipsoid and an adapted convolution model. A B-spline
based frame-to-frame elastic registration method was applied to both the scanconverted and non-scanconverded
data sets and the accuracy of the resulting deformation fields was quantified. The mean accuracy of the estimated
displacement was very similar for the scanconverted and non-scanconverted data sets and thus, it was shown
that 3D elastic registration to estimate the cardiac deformation from ultrasound images can be performed on
non-scanconverted images, but that avoiding of the scanconversion step does not significantly improve the results
of the displacement estimation.
Description: Elen A., Loeckx D., Choi H.F., Gao H., Claus P., Maes F., Suetens P., D’hooge J., ''Estimation of 3D cardiac deformation using spatio-temporal elastic registration of non-scanconverted ultrasound data'', SPIE medical imaging 2008 conference : ultrasonic imaging and signal processing, vol. 6920, pp. 69200R-69200R-9, February 17-21, 2008, San Diego, California, USA.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - PSI, Processing Speech and Images
Cardiovascular Imaging and Dynamics
Radiology
# (joint) last author

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